Typesense + Live preview

As I'm trying to get better in HTML/CSS/jQuery (I started from knowing almost nothing few weeks ago), I decided to create a new (tiny) side project called "Typesense" and sketch it directly in the browser. It is simply a responsive WP theme for writers who want to put the focus on their content. No sidebar, no "last posts" nor "you may like", just posts in a clear serif typeface.

This would be the article page: http://www.matmm.me/tests/typesense/index.html

Remember that this is just a preview (the menu-button animation shouldn't work that way for example but rather stay at -90deg as long as the slide menu is open... but i'll figure that out later).

Let's see how far I can get this done :)